JP2018538405A - Aqueous solution containing complexing agent in high concentration - Google Patents
Aqueous solution containing complexing agent in high concentration Download PDFInfo
- Publication number
- JP2018538405A JP2018538405A JP2018529987A JP2018529987A JP2018538405A JP 2018538405 A JP2018538405 A JP 2018538405A JP 2018529987 A JP2018529987 A JP 2018529987A JP 2018529987 A JP2018529987 A JP 2018529987A JP 2018538405 A JP2018538405 A JP 2018538405A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- acid
- complexing agent
- range
- mono
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007864 aqueous solution Substances 0.000 title claims abstract description 71
- 239000008139 complexing agent Substances 0.000 title claims abstract description 54
- 150000003839 salts Chemical class 0.000 claims abstract description 45
- 239000000243 solution Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- PDIZYYQQWUOPPK-UHFFFAOYSA-N acetic acid;2-(methylamino)acetic acid Chemical compound CC(O)=O.CC(O)=O.CNCC(O)=O PDIZYYQQWUOPPK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229920001577 copolymer Polymers 0.000 claims abstract description 12
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 claims abstract description 11
- 229920001519 homopolymer Polymers 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 41
- 229920000642 polymer Polymers 0.000 claims description 35
- 229910052783 alkali metal Inorganic materials 0.000 claims description 31
- -1 organic acid salt Chemical class 0.000 claims description 25
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 150000001340 alkali metals Chemical class 0.000 claims description 13
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 10
- CIEZZGWIJBXOTE-UHFFFAOYSA-N 2-[bis(carboxymethyl)amino]propanoic acid Chemical compound OC(=O)C(C)N(CC(O)=O)CC(O)=O CIEZZGWIJBXOTE-UHFFFAOYSA-N 0.000 claims description 9
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 claims description 9
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 claims description 9
- 229960002989 glutamic acid Drugs 0.000 claims description 9
- 239000004220 glutamic acid Substances 0.000 claims description 9
- 235000013922 glutamic acid Nutrition 0.000 claims description 9
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 8
- 229920002125 Sokalan® Polymers 0.000 claims description 8
- 235000019253 formic acid Nutrition 0.000 claims description 8
- 239000004584 polyacrylic acid Substances 0.000 claims description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- VCVKIIDXVWEWSZ-YFKPBYRVSA-N (2s)-2-[bis(carboxymethyl)amino]pentanedioic acid Chemical compound OC(=O)CC[C@@H](C(O)=O)N(CC(O)=O)CC(O)=O VCVKIIDXVWEWSZ-YFKPBYRVSA-N 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 9
- 229930195712 glutamate Natural products 0.000 abstract description 2
- 239000003599 detergent Substances 0.000 description 19
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 12
- 229910052708 sodium Inorganic materials 0.000 description 12
- 239000011734 sodium Substances 0.000 description 12
- 239000003513 alkali Substances 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 229920005604 random copolymer Polymers 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 238000005227 gel permeation chromatography Methods 0.000 description 5
- 159000000000 sodium salts Chemical class 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 235000011054 acetic acid Nutrition 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 150000007524 organic acids Chemical class 0.000 description 4
- 125000000542 sulfonic acid group Chemical group 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 150000001447 alkali salts Chemical class 0.000 description 3
- 235000015165 citric acid Nutrition 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000007529 inorganic bases Chemical class 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- IVWWFWFVSWOTLP-YVZVNANGSA-N (3'as,4r,7'as)-2,2,2',2'-tetramethylspiro[1,3-dioxolane-4,6'-4,7a-dihydro-3ah-[1,3]dioxolo[4,5-c]pyran]-7'-one Chemical compound C([C@@H]1OC(O[C@@H]1C1=O)(C)C)O[C@]21COC(C)(C)O2 IVWWFWFVSWOTLP-YVZVNANGSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- PQHYOGIRXOKOEJ-UHFFFAOYSA-N 2-(1,2-dicarboxyethylamino)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NC(C(O)=O)CC(O)=O PQHYOGIRXOKOEJ-UHFFFAOYSA-N 0.000 description 2
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229920005603 alternating copolymer Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 2
- 239000013042 solid detergent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 2
- SVZNRBAZGGBJOW-UHFFFAOYSA-N (2-methylprop-2-enoylamino)methanesulfonic acid Chemical compound CC(=C)C(=O)NCS(O)(=O)=O SVZNRBAZGGBJOW-UHFFFAOYSA-N 0.000 description 1
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- IAUGBVWVWDTCJV-UHFFFAOYSA-N 1-(prop-2-enoylamino)propane-1-sulfonic acid Chemical compound CCC(S(O)(=O)=O)NC(=O)C=C IAUGBVWVWDTCJV-UHFFFAOYSA-N 0.000 description 1
- PRAMZQXXPOLCIY-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethanesulfonic acid Chemical compound CC(=C)C(=O)OCCS(O)(=O)=O PRAMZQXXPOLCIY-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- AIIITCMZOKMJIM-UHFFFAOYSA-N 2-(prop-2-enoylamino)propane-2-sulfonic acid Chemical compound OS(=O)(=O)C(C)(C)NC(=O)C=C AIIITCMZOKMJIM-UHFFFAOYSA-N 0.000 description 1
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- KFNGWPXYNSJXOP-UHFFFAOYSA-N 3-(2-methylprop-2-enoyloxy)propane-1-sulfonic acid Chemical compound CC(=C)C(=O)OCCCS(O)(=O)=O KFNGWPXYNSJXOP-UHFFFAOYSA-N 0.000 description 1
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 description 1
- NYUTUWAFOUJLKI-UHFFFAOYSA-N 3-prop-2-enoyloxypropane-1-sulfonic acid Chemical compound OS(=O)(=O)CCCOC(=O)C=C NYUTUWAFOUJLKI-UHFFFAOYSA-N 0.000 description 1
- HBAQYPYDRFILMT-UHFFFAOYSA-N 8-[3-(1-cyclopropylpyrazol-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-methyl-3,8-diazabicyclo[3.2.1]octan-2-one Chemical class C1(CC1)N1N=CC(=C1)C1=NNC2=C1N=C(N=C2)N1C2C(N(CC1CC2)C)=O HBAQYPYDRFILMT-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 description 1
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- KDUKLSYDPJBKKT-UHFFFAOYSA-N S(=O)(=O)(O)C=C(C(=O)Br)C Chemical compound S(=O)(=O)(O)C=C(C(=O)Br)C KDUKLSYDPJBKKT-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 235000004279 alanine Nutrition 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 229910052936 alkali metal sulfate Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- MSJMDZAOKORVFC-SEPHDYHBSA-L disodium fumarate Chemical compound [Na+].[Na+].[O-]C(=O)\C=C\C([O-])=O MSJMDZAOKORVFC-SEPHDYHBSA-L 0.000 description 1
- MSJMDZAOKORVFC-UAIGNFCESA-L disodium maleate Chemical compound [Na+].[Na+].[O-]C(=O)\C=C/C([O-])=O MSJMDZAOKORVFC-UAIGNFCESA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 229940049906 glutamate Drugs 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 235000019294 sodium fumarate Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3245—Aminoacids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0094—Process for making liquid detergent compositions, e.g. slurries, pastes or gels
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
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- C11D3/33—Amino carboxylic acids
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
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- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
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Abstract
【課題】錯化剤を高濃度で含む水溶液を提供する。【解決手段】本発明は、水溶液であって、(i)メチルグリシン二酢酸及びそのモノ‐、ジ‐若しくはトリアルカリ金属塩、及びモノ‐、ジ‐若しくはトリアンモニウム塩、並びにグルタミン酸二酢酸、及びそのモノ‐、ジ‐、トリ‐若しくはテトラアルカリ金属塩及びモノ‐、ジ‐、トリ‐若しくはテトラアンモニウム塩からなる群から選択される、該溶液の総質量に基づいて45質量%から60質量%の範囲の少なくとも1種の錯化剤(A)、(ii)成分(A)の質量に基づいて1質量%から30質量%の範囲の、部分的に又は完全に中和された(メタ)アクリル酸の少なくとも1種のホモポリマー又はコポリマー(B)、並びに(iii)水を含み、少なくとも1週間安定である水溶液に関する。An aqueous solution containing a complexing agent at a high concentration is provided. The present invention provides an aqueous solution comprising: (i) methylglycine diacetate and its mono-, di- or trialkali metal salts, and mono-, di- or triammonium salts, and glutamate diacetate, and 45% to 60% by weight, based on the total weight of the solution, selected from the group consisting of its mono-, di-, tri- or tetraalkali metal salts and mono-, di-, tri- or tetraammonium salts At least one complexing agent (A) in the range of (ii) partially or fully neutralized (meth) in the range of 1% to 30% by weight, based on the weight of component (A) It relates to an aqueous solution comprising at least one homopolymer or copolymer of acrylic acid (B) and (iii) water and is stable for at least one week.
Description
本発明は、水溶液であって、
(i)メチルグリシン二酢酸及びそのモノ‐、ジ‐若しくはトリアルカリ金属塩、及びモノ‐、ジ‐若しくはトリアンモニウム塩、並びにグルタミン酸二酢酸、及びそのモノ‐、ジ‐、トリ‐若しくはテトラアルカリ金属塩及びモノ‐、ジ‐、トリ‐若しくはテトラアンモニウム塩からなる群から選択される、該溶液の総質量に基づいて45質量%から60質量%の範囲の少なくとも1種の錯化剤(A)、
(ii)成分(A)の質量に基づいて1質量%から30質量%の範囲の、部分的に又は完全に中和された(メタ)アクリル酸の少なくとも1種のホモポリマー又はコポリマー(B)、並びに
(iii)水
を含み、少なくとも1週間安定である水溶液に関する。
The present invention is an aqueous solution comprising:
(I) Methylglycine diacetic acid and its mono-, di- or trialkali metal salts and mono-, di- or triammonium salts, and glutamic acid diacetic acid and its mono-, di-, tri- or tetraalkali metals At least one complexing agent (A) in the range of 45% to 60% by weight, based on the total weight of the solution, selected from the group consisting of salts and mono-, di-, tri- or tetraammonium salts ,
(Ii) at least one homopolymer or copolymer of partially or fully neutralized (meth) acrylic acid in the range of 1% to 30% by weight, based on the weight of component (A) (B) And (iii) an aqueous solution comprising water and stable for at least one week.
錯化剤、例えばメチルグリシン二酢酸(MGDA)及びグルタミン酸二酢酸(GLDA)及びそれらのそれぞれのアルカリ金属塩は、Ca2+及びMg2+などのアルカリ土類金属イオンのための有用な金属イオン封鎖剤である。そのため、洗濯用洗剤及び自動的食器洗浄(ADW)用配合物、特にいわゆる無リン酸塩洗濯用洗剤及び無リン酸塩ADW配合物などの様々な目的に推奨され、使用されている。このような錯化剤を輸送するために、ほとんどの場合で、顆粒などの固体か又は水溶液が適用される。 Complexing agents such as methyl glycine diacetate (MGDA) and glutamate diacetate (GLDA) and their respective alkali metal salts are useful sequestering agents for alkaline earth metal ions such as Ca 2+ and Mg 2+ It is. Therefore, it is recommended and used for various purposes such as laundry detergents and automatic dishwashing (ADW) formulations, especially so-called phosphate-free laundry detergents and phosphate-free ADW formulations. In order to transport such complexing agents, in most cases solids such as granules or aqueous solutions are applied.
多くの産業的ユーザーは、可能な限り高濃度の水溶液で錯化剤を得ることを望んでいる。要求される錯化剤の濃度が低いほど、より多くの水が輸送される。前述の水は輸送コストを増加させ、また、後に除去しなければならない。MGDAの約40質量%溶液及びGLDAの47質量%溶液でさえも、室温で製造及び貯蔵することができるが、局所的又は一時的なより低温の溶液は、それぞれの錯化剤の析出だけでなく不純物による核形成をも引き起こすおそれがある。前記析出物は、パイプ及び容器内の付着物及び/又は配合中の不純物又は不均質性を引き起こすおそれがある。 Many industrial users want to obtain complexing agents in as high an aqueous solution as possible. The lower the concentration of complexing agent required, the more water is transported. Such water increases transportation costs and must be removed later. Even about 40% by weight MGDA solution and 47% by weight GLDA solution can be made and stored at room temperature, but local or temporary lower temperature solutions can only be obtained by precipitation of the respective complexing agent. There is also a risk of causing nucleation due to impurities. The deposits can cause deposits in pipes and containers and / or impurities or inhomogeneities during compounding.
顆粒及び粉末は、出荷する水の量を無視することができるので有用であるが、ほとんどの混合及び配合の方法では、追加の溶解工程が必要である。 Granules and powders are useful because the amount of water shipped can be neglected, but most mixing and compounding methods require an additional dissolution step.
それぞれの錯化剤の溶解性を高める添加剤が考慮され得るが、そのような添加剤は、それぞれの錯化剤の特性に悪影響を与えてはならない。 While additives that increase the solubility of each complexing agent can be considered, such additives should not adversely affect the properties of each complexing agent.
WO2014/184280には、15〜70質量%のMGDA、GLDAの少なくとも1つ及びイミノジコハク酸(IDS)を、0.1〜15質量%の非イオン性界面活性剤及び少なくとも1種の漂白剤又は酵素と組み合わせて含む、無リン酸塩の機械食器洗い用洗剤組成物が開示されている。 WO 2014/184280 contains 15 to 70% by weight of MGDA, at least one of GLDA and iminodisuccinic acid (IDS), 0.1 to 15% by weight of a nonionic surfactant and at least one bleach or enzyme. A phosphate-free machine dishwashing detergent composition is disclosed that is included in combination.
WO2014/191199には、界面活性剤を含まず、MGDAのアルカリ金属塩及びGLDAのアルカリ金属塩から選択される錯化剤を30〜60質量%の範囲で、並びにスルフォン酸の又は有機酸の少なくとも1種の塩を1〜25質量%の範囲で含む水溶液が開示されている。 WO 2014/191199 contains 30 to 60% by weight of a complexing agent which does not contain a surfactant and is selected from alkali metal salts of MGDA and alkali metal salts of GLDA, and at least of sulfonic acid or organic acid. An aqueous solution containing 1 to 25% by mass of one salt is disclosed.
WO2014/191198には、界面活性剤を含まず、MGDAのアルカリ金属塩及びGLDAのアルカリ金属塩から選択される30〜60質量%の範囲の錯化剤、並びにCH2COOH基で置換されたポリアミンを含む水溶液が開示されている。 WO 2014/191198 includes a complexing agent in the range of 30 to 60% by mass selected from an alkali metal salt of MGDA and an alkali metal salt of GLDA, and a polyamine substituted with a CH 2 COOH group. An aqueous solution containing is disclosed.
従って、本発明の目的は、ゼロから50℃の範囲の温度で安定なMGDA又はGLDAなどの錯化剤の高濃度水溶液を提供することであった。さらに本発明の目的は、ゼロから50℃の範囲の温度で安定なMGDA又はGLDAなどの錯化剤の高濃度水溶液を製造するための効率的な方法を提供することであった。そのような方法もそのような水溶液も、それぞれの錯化剤の特性に悪影響を与える添加剤の使用を必要としない。本発明のさらに別の目的は、産業上又は施設において用いられる洗浄剤組成物の製造のために、高濃度水溶液を使用することであった。 Accordingly, it was an object of the present invention to provide a high concentration aqueous solution of a complexing agent such as MGDA or GLDA that is stable at temperatures ranging from zero to 50 ° C. It was a further object of the present invention to provide an efficient method for producing highly concentrated aqueous solutions of complexing agents such as MGDA or GLDA that are stable at temperatures ranging from zero to 50 ° C. Neither such methods nor such aqueous solutions require the use of additives that adversely affect the properties of the respective complexing agent. Yet another object of the present invention was to use highly concentrated aqueous solutions for the manufacture of cleaning compositions used industrially or in facilities.
よって、以下に本発明による水溶液とも言う、最初に定義した水溶液が見出された。 Thus, the first defined aqueous solution, also referred to below as the aqueous solution according to the present invention, was found.
本発明による水溶液は、
(i)メチルグリシン二酢酸及びそのモノ‐、ジ‐若しくはトリアルカリ金属塩、及びモノ‐、ジ‐若しくはトリアンモニウム塩、並びにグルタミン酸二酢酸、及びそのモノ‐、ジ‐、トリ‐若しくはテトラアルカリ金属塩及びモノ‐、ジ‐、トリ‐若しくはテトラアンモニウム塩からなる群から選択される、該溶液の総質量に基づいて45質量%から60質量%の範囲の少なくとも1種の錯化剤(A)、
(ii)成分(A)の質量に基づいて1質量%から30質量%の範囲の、部分的に又は完全に中和された(メタ)アクリル酸の少なくとも1種のホモポリマー又はコポリマー(B)、並びに
(iii)水
を含み、少なくとも1週間安定である。
The aqueous solution according to the invention is
(I) Methylglycine diacetic acid and its mono-, di- or trialkali metal salts and mono-, di- or triammonium salts, and glutamic acid diacetic acid and its mono-, di-, tri- or tetraalkali metals At least one complexing agent (A) in the range of 45% to 60% by weight, based on the total weight of the solution, selected from the group consisting of salts and mono-, di-, tri- or tetraammonium salts ,
(Ii) at least one homopolymer or copolymer of partially or fully neutralized (meth) acrylic acid in the range of 1% to 30% by weight, based on the weight of component (A) (B) And (iii) contains water and is stable for at least one week.
錯化剤(A)は、メチルグリシン二酢酸及びそのモノ‐、ジ‐若しくはトリアルカリ金属塩、及びモノ‐、ジ‐若しくはトリアンモニウム塩(以下、メチルグリシン二酢酸のアルカリ金属塩と呼ぶ)、並びにグルタミン酸二酢酸及びそのモノ‐、ジ‐、トリ‐若しくはテトラアルカリ金属塩及びモノ‐、ジ‐、トリ‐若しくはテトラアンモニウム塩(以下、グルタミン酸二酢酸のアルカリ金属塩と呼ぶ)から選択される。 The complexing agent (A) is methyl glycine diacetic acid and its mono-, di- or trialkali metal salt, and mono-, di- or triammonium salt (hereinafter referred to as alkali metal salt of methylglycine diacetic acid), And glutamic acid diacetic acid and its mono-, di-, tri- or tetraalkali metal salts and mono-, di-, tri- or tetraammonium salts (hereinafter referred to as alkali metal salts of glutamic acid diacetic acid).
本発明の文脈において、メチルグリシン二酢酸のアルカリ金属塩は、メチルグリシン二酢酸のリチウム塩、カリウム塩及び好ましくはナトリウム塩から選択される。メチルグリシン二酢酸は、部分的に又は好ましくは完全にそれぞれのアルカリで中和することができる。好ましい実施形態では、平均で2.7〜3個のMGDAのCOOH基が、アルカリ金属で、好ましくはナトリウムで中和される。特に好ましい実施形態では、錯化剤(A)はMGDAの三ナトリウム塩である。 In the context of the present invention, the alkali metal salt of methylglycine diacetic acid is selected from the lithium salt, potassium salt and preferably the sodium salt of methylglycine diacetic acid. Methylglycine diacetic acid can be partially or preferably completely neutralized with the respective alkali. In a preferred embodiment, an average of 2.7-3 MGDA COOH groups are neutralized with an alkali metal, preferably with sodium. In a particularly preferred embodiment, the complexing agent (A) is MGDA trisodium salt.
同様に、グルタミン酸二酢酸のアルカリ金属塩は、グルタミン酸二酢酸のリチウム塩、カリウム塩及び好ましくはナトリウム塩から選択される。グルタミン酸二酢酸は、部分的に又は好ましくは完全にそれぞれのアルカリで中和することができる。好ましい実施形態では、平均で3.5〜4個のGLDAのCOOH基が、アルカリ金属で、好ましくはナトリウムで中和される。特に好ましい実施形態では、錯化剤(A)はGLDAの四ナトリウム塩である。 Similarly, the alkali metal salt of glutamic acid diacetic acid is selected from lithium, potassium and preferably sodium salts of glutamic acid diacetic acid. The glutamic acid diacetic acid can be partially or preferably completely neutralized with the respective alkali. In a preferred embodiment, on average 3.5 to 4 GLDA COOH groups are neutralized with an alkali metal, preferably with sodium. In a particularly preferred embodiment, the complexing agent (A) is the tetrasodium salt of GLDA.
錯化剤(A)は少なくとも部分的にアルカリ金属で中和され、より好ましくはナトリウム又はカリウムで、最も好ましくはナトリウムで中和される。 The complexing agent (A) is at least partially neutralized with an alkali metal, more preferably sodium or potassium, most preferably sodium.
錯化剤(A)は、MGDA及びGLDAのアルカリ金属塩のラセミ混合物、L−MGDAのアルカリ金属塩、L−GLDAのアルカリ金属塩、D−MGDAのアルカリ金属塩、及びD−GLDAのアルカリ金属塩等の純粋な鏡像体の各ラセミ混合物、並びに鏡像体的に豊富化した異性体混合物のラセミ混合物から選択できる。 The complexing agent (A) is a racemic mixture of alkali metal salts of MGDA and GLDA, an alkali metal salt of L-MGDA, an alkali metal salt of L-GLDA, an alkali metal salt of D-MGDA, and an alkali metal of D-GLDA It can be selected from racemic mixtures of pure enantiomers such as salts, as well as racemic mixtures of enantiomerically enriched isomers.
本発明の一実施形態では、錯化剤(A)は、メチルグリシン二酢酸(MGDA)のL‐鏡像体及びD‐鏡像体の混合物、又はMGDAのそれぞれのモノ‐、ジ‐若しくはトリアルカリ金属塩若しくはモノ‐、ジ‐及びトリアンモニウム塩のそれぞれのL‐鏡像体及びD‐鏡像体の混合物、又はそれらの混合物のL‐鏡像体及びD‐鏡像体の混合物、並びにグルタミン酸ニ酢酸(GLDA)のL‐鏡像体及びD‐鏡像体の混合物、又はGLDAのそれぞれのモノ‐、ジ‐、トリ‐若しくはテトラアルカリ金属塩若しくはモノ‐、ジ‐、トリ‐若しくはテトラアンモニウム塩のそれぞれのL‐鏡像体及びD‐鏡像体の混合物から、又はそれらのL‐鏡像体及びD‐鏡像体の混合物から選択される。前述の混合物は、主にそれぞれのL‐異性体を10〜95%の範囲の鏡像体過剰率(ee)で含有する。 In one embodiment of the invention, the complexing agent (A) is a mixture of L-enantiomer and D-enantiomer of methylglycine diacetate (MGDA), or a mono-, di- or trialkali metal of MGDA, respectively. L-enantiomer and D-enantiomer mixtures of salts or mono-, di- and triammonium salts, or mixtures of L-enantiomers and D-enantiomers of these mixtures, and glutamic acid diacetic acid (GLDA) L-enantiomers and mixtures of D-enantiomers or the respective mono-, di-, tri- or tetraalkali metal salts or mono-, di-, tri- or tetraammonium salts of GLDA Selected from a mixture of L-enantiomers and D-enantiomers. Said mixture mainly contains the respective L-isomer with an enantiomeric excess (ee) in the range of 10-95%.
本発明の一実施形態では、錯化剤(A)は、実質的に、アルカリ金属で少なくとも部分的に中和されたL‐グルタミン酸二酢酸である。 In one embodiment of the invention, the complexing agent (A) is substantially L-glutamic acid diacetic acid that is at least partially neutralized with an alkali metal.
本発明の一実施形態では、本発明による水溶液は、45〜60質量%の範囲の、好ましくは45〜55質量%の、さらにより好ましくは47〜52質量%の錯化剤(A)を含有する。別の非常に好ましい実施形態では、本発明による水溶液は、49〜51質量%の範囲の錯化剤(A)を含有する。 In one embodiment of the invention, the aqueous solution according to the invention contains the complexing agent (A) in the range of 45-60% by weight, preferably 45-55% by weight, even more preferably 47-52% by weight. To do. In another highly preferred embodiment, the aqueous solution according to the invention contains a complexing agent (A) in the range of 49-51% by weight.
本発明の一実施形態では、本発明による水溶液は、45〜60質量%の範囲の、好ましくは45〜55質量%の、さらにより好ましくは47〜52質量%の錯化剤(A)であるメチルグリシン二酢酸のアルカリ金属塩を含有する。別の非常に好ましい実施形態では、本発明による水溶液は、49〜51質量%の範囲の錯化剤(A)であるメチルグリシン二酢酸のアルカリ金属塩を含有する。 In one embodiment of the invention, the aqueous solution according to the invention is the complexing agent (A) in the range of 45-60% by weight, preferably 45-55% by weight, even more preferably 47-52% by weight. Contains an alkali metal salt of methylglycine diacetic acid. In another highly preferred embodiment, the aqueous solution according to the invention contains an alkali metal salt of methylglycine diacetate, which is a complexing agent (A) in the range of 49-51% by weight.
本発明の一実施形態では、本発明による水溶液は、錯化剤(A)として45〜60質量%の範囲のGLDAのアルカリ金属塩を、好ましくは45〜55質量%の、さらにより好ましくは47〜52質量%の、最も好ましくは49〜51質量%のGLDAのアルカリ金属塩を錯化剤(A)として含有する。 In one embodiment of the invention, the aqueous solution according to the invention comprises an alkali metal salt of GLDA in the range of 45-60% by weight as complexing agent (A), preferably 45-55% by weight, even more preferably 47. ˜52 mass%, most preferably 49-51 mass% of GLDA alkali metal salt is contained as complexing agent (A).
いずれにせよ、錯化剤(A)の少量は、アルカリ金属以外のカチオンを有し得る。従って、少量の、例えば全錯化剤(A)の0.01〜5mol%は、アルカリ土類金属カチオン、例えばMg2+若しくはCa2+又はFe(II)若しくはFe(III)カチオンなどを有することが可能である。 In any case, a small amount of complexing agent (A) can have cations other than alkali metals. Thus, a small amount, for example 0.01-5 mol% of the total complexing agent (A), may have an alkaline earth metal cation, such as Mg 2+ or Ca 2+ or Fe (II) or Fe (III) cation. Is possible.
本発明の水溶液は、さらにポリマー(以下、ポリマー(B)ともいう)を含有し、その量は、成分(A)の質量に基づいて1質量%から30質量%の範囲、好ましくは2.5質量%〜20質量%、最も好ましくは5質量%〜15質量%である。 The aqueous solution of the present invention further contains a polymer (hereinafter also referred to as polymer (B)), and the amount thereof ranges from 1% by mass to 30% by mass, preferably 2.5% based on the mass of component (A). % By mass to 20% by mass, most preferably 5% by mass to 15% by mass.
ポリマー(B)は、(メタ)アクリル酸のホモポリマー(B)及び(メタ)アクリル酸の、好ましくはアクリル酸のコポリマー(B)から選択され、いずれの場合もアルカリで部分的に又は完全に中和される。本発明の文脈において、コポリマー(B)は、その中のコモノマーの少なくとも50mol%が、好ましくは少なくとも75mol%が、さらにより好ましくは80〜99mol%が(メタ)アクリル酸であるコポリマーである。 The polymer (B) is selected from a homopolymer of (meth) acrylic acid (B) and a copolymer of (meth) acrylic acid, preferably a copolymer of acrylic acid (B), in each case partially or completely with alkali Neutralized. In the context of the present invention, the copolymer (B) is a copolymer in which at least 50 mol%, preferably at least 75 mol%, even more preferably from 80 to 99 mol% of the comonomer therein is (meth) acrylic acid.
コポリマー(B)のための適切なコモノマーは、エチレン性不飽和化合物、例えばスチレン、イソブテン、エチレン、α‐オレフィン、例えばプロピレン、1‐ブチレン、1‐ヘキセン、並びにエチレン性不飽和ジカルボン酸及びそのアルカリ金属塩と無水物、例えばマレイン酸、フマル酸、イタコン酸、マレイン酸二ナトリウム、フマル酸二ナトリウム、無水イタコン酸、及び特に無水マレイン酸が挙げられるが、これらに限定されない。適切なコモノマーのさらなる例は、(メタ)アクリル酸のC1〜C4‐アルキルエステル、例えばアクリル酸メチル、メタクリル酸メチル、アクリル酸エチル、メタクリル酸エチル、アクリル酸n‐ブチルである。 Suitable comonomers for copolymer (B) are ethylenically unsaturated compounds such as styrene, isobutene, ethylene, α-olefins such as propylene, 1-butylene, 1-hexene, and ethylenically unsaturated dicarboxylic acids and their alkalis. Metal salts and anhydrides include, but are not limited to, maleic acid, fumaric acid, itaconic acid, disodium maleate, disodium fumarate, itaconic anhydride, and especially maleic anhydride. Further examples of suitable comonomers are C 1 -C 4 -alkyl esters of (meth) acrylic acid, such as methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-butyl acrylate.
本発明の一実施形態では、ポリマー(B)は、(メタ)アクリル酸と1分子当たり少なくとも1個のスルホン酸基を有するコモノマーとのコポリマーから選択される。1分子当たり少なくとも1個のスルホン酸基を有するコモノマーは、遊離酸としてポリマー(B)に組み込まれるか、又は少なくとも部分的にアルカリで中和されてもよい。特に好ましいスルホン酸基含有コモノマーは、1‐アクリルアミド‐1‐プロパンスルホン酸、2‐アクリルアミド‐2‐プロパンスルホン酸、2‐アクリルアミド‐2‐メチルプロパンスルホン酸(AMPS)、2‐メタクリルアミド‐2‐メチルプロパンスルホン酸、3‐メタクリルアミド‐2‐ヒドロキシプロパンスルホン酸、アリルスルホン酸、メタアリルスルホン酸、アリルオキシベンゼンスルホン酸、メタアリルオキシベンゼンスルホン酸、2‐ヒドロキシ‐3‐(2‐プロペニルオキシ)プロパンスルホン酸、2‐メチル‐2‐プロペン‐1‐スルホン酸、スチレンスルホン酸、ビニルスルホン酸、3‐スルホプロピルアクリレート、2‐スルホエチルメタクリレート、3‐スルホプロピルメタクリレート、スルホメタクリルアミド、スルホメチルメタクリルアミド、及び前述の酸の塩、例えばそれらのナトリウム塩、カリウム塩又はアンモニウム塩などである。 In one embodiment of the invention, the polymer (B) is selected from a copolymer of (meth) acrylic acid and a comonomer having at least one sulfonic acid group per molecule. Comonomers having at least one sulfonic acid group per molecule may be incorporated into the polymer (B) as the free acid or at least partially neutralized with alkali. Particularly preferred sulfonic acid group-containing comonomers are 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid (AMPS), 2-methacrylamide-2- Methylpropanesulfonic acid, 3-methacrylamide-2-hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3- (2-propenyloxy) ) Propanesulfonic acid, 2-methyl-2-propene-1-sulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate, 2-sulfoethyl methacrylate, 3-sulfopropyl methacrylate, sulfomethacryl Bromide, sulfomethyl methacrylamide and salts of the aforementioned acids, for example their sodium salts, potassium salts or ammonium salts, and the like.
コポリマー(B)は、ランダムコポリマー、交互コポリマー、ブロックコポリマー及びグラフトコポリマーから選択でき、交互コポリマー及び特にランダムコポリマーが好ましい。 The copolymer (B) can be selected from random copolymers, alternating copolymers, block copolymers and graft copolymers, with alternating copolymers and in particular random copolymers being preferred.
有用なコポリマー(B)は、例えば、アクリル酸とメタクリル酸のランダムコポリマー、アクリル酸と無水マレイン酸のランダムコポリマー、アクリル酸、メタクリル酸と無水マレイン酸の三元ランダムコポリマー、アクリル酸とスチレンのランダムコポリマー又はブロックコポリマー、アクリル酸とアクリル酸メチルのランダムコポリマーである。メタクリル酸のホモポリマーがより好ましい。アクリル酸のホモポリマーがさらにより好ましい。 Useful copolymers (B) include, for example, random copolymers of acrylic acid and methacrylic acid, random copolymers of acrylic acid and maleic anhydride, acrylic acid, ternary random copolymers of methacrylic acid and maleic anhydride, random copolymers of acrylic acid and styrene. Copolymer or block copolymer, a random copolymer of acrylic acid and methyl acrylate. More preferred is a homopolymer of methacrylic acid. Even more preferred are homopolymers of acrylic acid.
ポリマー(B)は、直鎖分子又は分岐分子を構成し得る。この文脈における分岐は、このようなポリマー(B)の少なくとも1つの繰り返し単位が、主鎖の一部ではないが分岐又は分岐の一部を形成する場合とされる。好ましくは、ポリマー(B)は架橋されていない。 The polymer (B) can constitute a linear molecule or a branched molecule. Branching in this context is taken when at least one repeating unit of such a polymer (B) is not part of the main chain but forms a branch or part of a branch. Preferably, polymer (B) is not cross-linked.
本発明の一実施形態では、ポリマー(B)は、ゲル透過クロマトグラフィー(GPC)によって測定し、それぞれの遊離酸に対して、1,500〜15,000g/mol、より好ましくは2,000〜10,000g/mol、最も好ましくは2,000〜5,000/molgの範囲の平均分子量Mwを有する。 In one embodiment of the invention, the polymer (B) is measured by gel permeation chromatography (GPC) and is from 1,500 to 15,000 g / mol, more preferably from 2,000 to 1, for each free acid. It has an average molecular weight Mw in the range of 10,000 g / mol, most preferably 2,000 to 5,000 / molg.
本発明の一実施形態では、ポリマー(B)は、少なくとも部分的にアルカリで中和され、例えば、リチウム又はカリウム又はナトリウム又は前述のうち少なくとも2つの組み合わせで、特にナトリウムで中和される。好ましくは、10〜100mol%の範囲のポリマー(B)のカルボキシル基がアルカリで、特にナトリウムで中和される。より好ましくは、ポリマー(B)のカルボキシル基の50〜100mol%がアルカリで、特にナトリウムで中和される。さらにより好ましくは、ポリマー(B)のカルボキシル基の80〜100mol%がアルカリで、特にナトリウムで中和される。完全に中和されたポリマー(B)が最も好ましい。 In one embodiment of the invention, the polymer (B) is at least partially neutralized with alkali, such as lithium or potassium or sodium or at least two of the foregoing, in particular sodium. Preferably, the carboxyl groups of the polymer (B) in the range of 10 to 100 mol% are neutralized with alkali, in particular with sodium. More preferably, 50 to 100 mol% of the carboxyl group of the polymer (B) is neutralized with an alkali, particularly with sodium. Even more preferably, 80 to 100 mol% of the carboxyl groups of the polymer (B) are neutralized with alkali, in particular with sodium. A completely neutralized polymer (B) is most preferred.
本発明の一実施形態では、ポリアクリル酸(B)は、少なくとも部分的にアルカリ金属で中和され、より好ましくは完全にアルカリ金属で中和され、最も好ましくはナトリウム、カリウム又はナトリウムとカリウムの混合物で中和される。 In one embodiment of the invention, the polyacrylic acid (B) is at least partially neutralized with an alkali metal, more preferably completely neutralized with an alkali metal, most preferably sodium, potassium or sodium and potassium. Neutralized with mixture.
本発明の一実施形態では、ポリマー(B)は、ポリアクリル酸のペルナトリウム塩から選択され、よってナトリウムで完全に中和されたポリアクリル酸である。 In one embodiment of the invention, the polymer (B) is a polyacrylic acid selected from the persodium salt of polyacrylic acid and thus completely neutralized with sodium.
本発明の一実施形態では、ポリマー(B)は、少なくとも1つのポリアクリル酸と、(メタ)アクリル酸と分子当たり少なくとも1個のスルホン酸基を有するコモノマーの少なくとも1つのコポリマーとの組み合わせから選択され、ポリマーは両方ともアルカリで完全に中和される。 In one embodiment of the invention, the polymer (B) is selected from the combination of at least one polyacrylic acid and (meth) acrylic acid and at least one copolymer of comonomers having at least one sulfonic acid group per molecule. Both polymers are completely neutralized with alkali.
本発明の一実施形態では、ポリマー(B)は、ゲル透過クロマトグラフィー(GPC)によって測定し、それぞれの遊離酸に対して、平均分子量Mwを1,500〜15,000g/molの範囲で、より好ましくは2,000〜10,000g/molの範囲で、最も好ましくは2,000〜5,000g/molの範囲で有するポリアクリル酸のペルナトリウム塩から選択される。 In one embodiment of the present invention, the polymer (B) is measured by gel permeation chromatography (GPC) and has an average molecular weight Mw in the range of 1,500 to 15,000 g / mol for each free acid. More preferably in the range of 2,000 to 10,000 g / mol, most preferably in the range of 2,000 to 5,000 g / mol of polyacrylic acid persodium salt.
水溶液の安定性を測定するために、毎日安定性チェック(daily stability check)を用いて安定性をモニターした。このため、200mlの溶液を密封ガラスに入れ、23℃及び相対湿度60%で保管した。毎日、試料の結晶の形成を目視で観察して、水溶液を光学的に制御した。結晶が最初に観察された日を記録し、試験を終了した。溶液の保管安定性は、結晶が観察されなかった日数(すなわち、保管安定性試験の継続期間より1日少ない)として報告した。 To measure the stability of the aqueous solution, the stability was monitored using a daily stability check. For this purpose, 200 ml of the solution was placed in a sealed glass and stored at 23 ° C. and 60% relative humidity. Every day, the crystal formation of the sample was visually observed to control the aqueous solution optically. The day when crystals were first observed was recorded and the test was terminated. The storage stability of the solution was reported as the number of days that no crystals were observed (ie, one day less than the duration of the storage stability test).
本発明の一実施形態では、本発明による水溶液は、1質量%水溶液として測定して、pH値を9〜14の範囲、好ましくは9.5〜12の範囲で有する。 In one embodiment of the invention, the aqueous solution according to the invention has a pH value in the range of 9-14, preferably in the range of 9.5-12, measured as a 1% by weight aqueous solution.
本発明の一実施形態では、本発明による水溶液は、少なくとも1種の無機塩基、例えば水酸化カリウム又は好ましくは水酸化ナトリウムを含有してもよい。好ましくは、錯化剤(A)中のCOOH基及びポリマー(B)の合計に対して、無機塩基が0.1〜20mol%の量である。 In one embodiment of the invention, the aqueous solution according to the invention may contain at least one inorganic base, such as potassium hydroxide or preferably sodium hydroxide. Preferably, the inorganic base is in an amount of 0.1 to 20 mol% with respect to the total of the COOH group and the polymer (B) in the complexing agent (A).
本発明の水溶液はさらに水を含有する。 The aqueous solution of the present invention further contains water.
本発明の一実施形態では、本発明による水溶液において、錯化剤(A)及びポリマー(B)及び任意に無機塩基の残部は水である。他の実施形態では、本発明による水溶液は、錯化剤(A)及びポリマー(B)及び水以外に、1つ又は複数の液体又は固体を含有できる。 In one embodiment of the invention, in the aqueous solution according to the invention, the complexing agent (A) and the polymer (B) and optionally the balance of the inorganic base is water. In other embodiments, the aqueous solution according to the present invention may contain one or more liquids or solids in addition to the complexing agent (A) and the polymer (B) and water.
さらに、本発明の混合物及びまた本発明の溶液も、1種又は複数の無機非塩基性塩、例えば、アルカリ金属ハロゲン化物又は好ましくはアルカリ金属硫酸塩、特に硫酸カリウム又はさらにより好ましくは硫酸ナトリウムなど(しかしこれらに限定されない)を含有できる。無機非塩基性塩の含有量は、それぞれ本発明の混合物又はそれぞれ本発明の溶液の固形分に対して、0.10〜1.5質量%の範囲でよい。さらにより好ましくは、本発明の混合物及びまた本発明の溶液も、無機非塩基性塩を著しい量では含有せず、例えば、それぞれ本発明の混合物又はそれぞれ本発明の溶液の固形分に対して、50質量ppm〜0.05質量%の範囲で含有する。さらにより好ましくは、本発明の混合物は、それぞれ本発明の混合物に対して、合計が1〜50質量ppmの塩化物と硫酸塩を含有する。硫酸塩の含有量は、例えば、質量測定又はイオンクロマトグラフィーによって測定することができる。 In addition, the mixtures according to the invention and also the solutions according to the invention can be one or more inorganic non-basic salts, such as alkali metal halides or preferably alkali metal sulfates, in particular potassium sulfate or even more preferably sodium sulfate. (But not limited to). The content of the inorganic non-basic salt may be in the range of 0.10 to 1.5% by mass with respect to the solid content of the mixture of the present invention or the solution of the present invention. Even more preferably, the mixtures according to the invention and also the solutions according to the invention do not contain significant amounts of inorganic non-basic salts, e.g. for each of the solids of the inventive mixture or of the inventive solution, respectively. It contains in 50 mass ppm-0.05 mass%. Even more preferably, the mixture of the present invention contains a total of 1 to 50 ppm by weight of chloride and sulfate with respect to the mixture of the present invention. The sulfate content can be measured, for example, by mass measurement or ion chromatography.
本発明の一実施形態では、本発明による水溶液は、さらに、0.5〜15質量%の範囲の、好ましくは1〜10質量%、より好ましくは2〜5質量%の少なくとも1種の有機酸の少なくとも1種の塩(以下、塩(C)ともいう)を含む。 In one embodiment of the present invention, the aqueous solution according to the present invention further comprises at least one organic acid in the range of 0.5-15% by weight, preferably 1-10% by weight, more preferably 2-5% by weight. At least one salt (hereinafter also referred to as salt (C)).
本発明の文脈において、塩(C)は、モノカルボン酸及びジカルボン酸の塩から選択される。さらに、塩(C)は、錯化剤(A)及びポリマー(B)のどちらとも異なる。 In the context of the present invention, the salt (C) is selected from salts of monocarboxylic acids and dicarboxylic acids. Furthermore, the salt (C) is different from both the complexing agent (A) and the polymer (B).
本発明の好ましい実施形態では、中和されていないか、又はアルカリ金属で部分的に若しくは完全に中和された塩(C)は、酢酸、ギ酸、クエン酸、酒石酸、乳酸、マレイン酸、フマル酸、リンゴ酸、又はそれらの混合物からなる群から選択される。好ましい塩(C)は、クエン酸、ギ酸、酢酸、又はそれらの混合物からなる群から選択される。より好ましい塩(C)は、ギ酸、酢酸又はそれらの混合物からなる群から選択される。最も好ましい塩(C)はギ酸である。 In a preferred embodiment of the invention, the salt (C) which is not neutralized or partially or fully neutralized with alkali metal is acetic acid, formic acid, citric acid, tartaric acid, lactic acid, maleic acid, fumaric acid. It is selected from the group consisting of acids, malic acid, or mixtures thereof. Preferred salts (C) are selected from the group consisting of citric acid, formic acid, acetic acid, or mixtures thereof. More preferred salts (C) are selected from the group consisting of formic acid, acetic acid or mixtures thereof. The most preferred salt (C) is formic acid.
本発明の好ましい一実施形態では、塩(C)は、メチルスルホン酸のアルカリ金属塩、好ましくはカリウム又はナトリウム塩、より好ましくはナトリウム塩である。 In a preferred embodiment of the invention, the salt (C) is an alkali metal salt of methyl sulfonic acid, preferably a potassium or sodium salt, more preferably a sodium salt.
本発明の一実施形態では、本発明による水溶液は界面活性剤を含まない。本発明の文脈において、「界面活性剤を含まない」とは、界面活性剤の合計含有量が、それぞれの水溶液の0.1質量%未満であることを意味する。 In one embodiment of the invention, the aqueous solution according to the invention does not contain a surfactant. In the context of the present invention “free of surfactant” means that the total content of surfactant is less than 0.1% by weight of the respective aqueous solution.
本発明の一実施形態では、錯化剤(A)は、乳酸、アラニン、プロピオン酸又はその他同様のものなど、その合成に起因する少量の不純物を含有することができる。この文脈において「少量」とは、錯化剤(A)に対して合計で0.1〜1質量%を言う。 In one embodiment of the invention, the complexing agent (A) can contain a small amount of impurities resulting from its synthesis, such as lactic acid, alanine, propionic acid or the like. In this context, “small amount” refers to a total of 0.1 to 1% by weight relative to the complexing agent (A).
本発明の一実施形態では、本発明による水溶液は、DIN53018に従って25℃で測定した動粘度が、55〜1000mPa・sの範囲、好ましくは100〜700mPa・sの範囲、より好ましくは150〜400mPasの範囲である。 In one embodiment of the invention, the aqueous solution according to the invention has a kinematic viscosity measured at 25 ° C. according to DIN 53018 in the range from 55 to 1000 mPa · s, preferably in the range from 100 to 700 mPa · s, more preferably from 150 to 400 mPas. It is a range.
本発明の一実施形態では、本発明による水溶液は、DIN EN1557に従って25℃で測定したハーゼンによる色数が、15〜400の範囲、好ましくは300までの範囲である。 In one embodiment of the invention, the aqueous solution according to the invention has a Hazen color number measured in accordance with DIN EN 1557 at 25 ° C. in the range of 15 to 400, preferably up to 300.
本発明のさらなる態様は、洗浄剤のための洗剤組成物の製造に本発明の混合物又は本発明の溶液を使用する方法である。さらなる態様は、本発明の混合物又は本発明の溶液を使用して洗剤組成物洗浄剤を製造する方法である。水性組成物中又は乾燥物質中での混合が所望されるかどうか、及び液体又は固体の洗剤組成物が所望されるかどうかに依存して、本発明の水溶液又は本発明の異性体の混合物を使用することができる。混合は、それ自体知られている配合工程によって実施することができる。 A further aspect of the invention is a method of using the inventive mixture or the inventive solution in the manufacture of a detergent composition for a cleaning agent. A further aspect is a method for producing a detergent composition detergent using the inventive mixture or the inventive solution. Depending on whether mixing in an aqueous composition or in a dry substance is desired and whether a liquid or solid detergent composition is desired, the aqueous solution of the invention or the mixture of isomers of the invention Can be used. Mixing can be carried out by blending processes known per se.
特に、洗浄剤用の固体洗剤組成物を製造するために本発明の溶液を用いて混合を行うとき、そのような使用方法は有利である。なぜならば、後に除去する水は削減された量のみを添加することができるからであり、また、洗剤製造者の柔軟性を低減するポリマー、界面活性剤又は塩などの追加の成分が存在しないことで、大きな柔軟性が得られるためである。 In particular, such a method of use is advantageous when mixing with the solution of the present invention to produce a solid detergent composition for a detergent. This is because the water that is subsequently removed can be added only in reduced amounts, and there are no additional ingredients such as polymers, surfactants or salts that reduce the flexibility of the detergent manufacturer. This is because great flexibility can be obtained.
本発明の一実施形態では、本発明の水溶液は、洗浄剤用洗剤組成物の製造にそのまま使用できる。他の実施形態では、本発明の水溶液は、完全に又は好ましくは部分的に中和された形態で洗浄剤用洗剤組成物の製造に使用される。一実施形態では、本発明の水溶液は、完全に又は好ましくは部分的に中和した形態で洗浄剤用洗剤組成物の製造に使用され、前述の中和は、無機酸(鉱酸)を用いて実施される。好ましい無機酸は、H2SO4、HCl及びH3PO4から選択される。他の実施形態において、本発明の水溶液は、完全に又は好ましくは部分的に中和された形態で洗浄剤用洗剤組成物の製造に使用され、前述の中和は、有機酸を用いて実施される。好ましい有機酸は、CH3SO3H、酢酸、プロピオン酸、及びクエン酸から選択される。 In one embodiment of the present invention, the aqueous solution of the present invention can be used as it is for the production of a detergent composition for a detergent. In other embodiments, the aqueous solutions of the present invention are used in the manufacture of detergent compositions for detergents in a fully or preferably partially neutralized form. In one embodiment, the aqueous solution of the present invention is used in the manufacture of a detergent composition for detergents in a fully or preferably partially neutralized form, the neutralization using an inorganic acid (mineral acid). Implemented. Preferred inorganic acids are selected from H 2 SO 4, HCl and H 3 PO 4 . In another embodiment, the aqueous solution of the present invention is used in the manufacture of a detergent composition for detergents in a fully or preferably partially neutralized form, the neutralization being carried out with an organic acid. Is done. Preferred organic acids are selected from CH 3 SO 3 H, acetic acid, propionic acid, and citric acid.
本発明の文脈において、「洗浄剤用洗剤組成物」という用語は、産業上又は施設において用いる用途のための洗浄剤を含む。 In the context of the present invention, the term “detergent detergent composition” includes detergents for industrial or facility use.
よって本発明の別の態様は、産業上又は施設において用いる洗浄剤組成物に本発明による水溶液を使用する方法である。 Therefore, another aspect of the present invention is a method of using the aqueous solution according to the present invention in a cleaning composition used industrially or in a facility.
本発明の別の態様は、本発明による水溶液を製造する方法であって、前述の方法は本発明の方法とも言う。本発明の方法は、
(i)固形分を41〜50質量%の範囲で有する錯化剤(A)の水溶液を提供する工程、
(ii)該溶液にポリマー(B)を添加する工程、続いて
(iii)水を除去し、水溶液中の錯化剤(A)の濃度が45〜60%である溶液を得る工程、
を含む。
Another aspect of the present invention is a method for producing an aqueous solution according to the present invention, said method being also referred to as the method of the present invention. The method of the present invention comprises:
(I) providing an aqueous solution of the complexing agent (A) having a solid content in the range of 41 to 50% by mass;
(Ii) adding the polymer (B) to the solution, followed by (iii) removing water and obtaining a solution having a concentration of the complexing agent (A) in the aqueous solution of 45 to 60%,
including.
本発明のこの方法で、水中の錯化剤(A)の高濃度溶液の高速な製造が可能となるが、得られる水溶液の安定化のためのポリマー(B)がすでに溶解して含有されている水溶液においては、錯化剤(A)の最終量の溶解は、非常に遅い。 This method of the present invention enables high-speed production of a high concentration solution of the complexing agent (A) in water, but the polymer (B) for stabilizing the resulting aqueous solution is already dissolved and contained. In aqueous solutions, the final amount of complexing agent (A) dissolves very slowly.
本発明の一実施形態において、錯化剤(A)とポリマー(B)との水中での混合は、30〜85℃の範囲の温度で、好ましくは25〜50℃の範囲の温度で実施することができる。本発明の別の実施形態では、錯化剤(A)とポリマー(B)との混合は、周囲温度又はわずかに上昇した温度で、例えば21〜29℃の範囲の温度で実施することができる。 In one embodiment of the invention, the mixing of the complexing agent (A) and the polymer (B) in water is carried out at a temperature in the range of 30-85 ° C, preferably in the range of 25-50 ° C. be able to. In another embodiment of the invention, the mixing of complexing agent (A) and polymer (B) can be carried out at ambient temperature or slightly elevated temperature, for example at a temperature in the range 21-29 ° C. .
本発明の方法は、あらゆる圧力、例えば500mbar〜25barの範囲の圧力で実施することができる。常圧が好ましい。 The process according to the invention can be carried out at any pressure, for example in the range of 500 mbar to 25 bar. Normal pressure is preferred.
本発明の方法は、あらゆる種類の容器内で、例えば撹拌タンク反応器中で又はポリマー(B)の供与のための手段を備えたパイプ中で、又はビーカー、フラスコ又は瓶の中で実施することができる。 The process according to the invention is carried out in any kind of vessel, for example in a stirred tank reactor or in a pipe provided with means for the delivery of polymer (B) or in a beaker, flask or bottle. Can do.
水の除去は、例えば、薄膜を活用して、又は蒸発によって、達成することができる。水の蒸発は水の留去によって実施することができ、撹拌を用いても用いなくてもよく、常圧又は常圧よりも低い圧力で、例えば20〜65℃の範囲の温度で、実施することができる。 Water removal can be accomplished, for example, utilizing a thin film or by evaporation. The evaporation of water can be carried out by distilling off the water, with or without stirring, and is carried out at normal pressure or at a pressure lower than normal pressure, for example at a temperature in the range of 20-65 ° C. be able to.
本発明を以下の実施例によってさらに説明する。 The invention is further illustrated by the following examples.
百分率は他に明確な記載のない限り、質量%を言う。 Percentages refer to weight percent unless otherwise explicitly stated.
以下の物質を使用した。 The following materials were used.
錯化剤A.1:MGDAの三ナトリウム塩、40質量%水溶液として提供、pH値:13。
ポリマーB.1:アクリル酸のホモポリマー、粉末、純度92%、水酸化ナトリウムで中和、GPCで測定した質量平均分子量が4000g/molで、1質量%水溶液のpHは8である。
比較例ポリマーB.2:ナフタレンスルホン酸の重縮合物、粉末、純度95%、Na塩、1質量%水溶液のpHは10である。
Complexing agent A. 1: MGDA trisodium salt, provided as a 40 wt% aqueous solution, pH value: 13.
Polymer B. 1: Homopolymer of acrylic acid, powder, purity 92%, neutralized with sodium hydroxide, mass average molecular weight measured by GPC is 4000 g / mol, and pH of 1% by mass aqueous solution is 8.
Comparative Example Polymer B. 2: Polycondensate of naphthalenesulfonic acid, powder, purity 95%, Na salt, pH of 10% by weight aqueous solution is 10.
ギ酸、100%、固体。 Formic acid, 100%, solid.
実施例1
112.5gの錯化剤A.1(40質量%溶液)、8.15gのポリマーB.1及び1.6gのギ酸を23℃で混合し、透明な溶液を得た。22.25gの水を真空蒸留により除去した。
Example 1
112.5 g of complexing agent 1 (40 wt% solution), 8.15 g of polymer B.I. 1 and 1.6 g of formic acid were mixed at 23 ° C. to obtain a clear solution. 22.25 g of water was removed by vacuum distillation.
このようにして得られた水溶液は透明であった。該水溶液は345mPasの動的粘度(スピンドル31を使用しブルックフィールド粘度計で23℃で測定)を有し、密閉ガラス瓶中、23℃、相対湿度60%で少なくとも5週間安定であった。 The aqueous solution thus obtained was transparent. The aqueous solution had a dynamic viscosity of 345 mPas (measured at 23 ° C. using a Brookfield viscometer using spindle 31) and was stable in a sealed glass bottle at 23 ° C. and 60% relative humidity for at least 5 weeks.
比較例1
ポリマーB.1を比較例ポリマーB.2に置き換えて、実施例1を繰り返した。得られた溶液は12時間以内で不透明になった。
Comparative Example 1
Polymer B. 1 is a comparative polymer B.1. Example 1 was repeated with 2 substitutions. The resulting solution became opaque within 12 hours.
比較例2
112.5gの錯化剤A.1(40質量%溶液)、16.30gのポリマーB.1及び1.6gのギ酸を23℃で混合した。30.4gの水を真空下で蒸留により除去した。
Comparative Example 2
112.5 g of complexing agent 1 (40 wt% solution), 16.30 g of polymer 1 and 1.6 g of formic acid were mixed at 23 ° C. 30.4 g of water was removed by distillation under vacuum.
このようにして得られた水溶液は、瞬時に混濁した。 The aqueous solution thus obtained became turbid instantly.
Claims (12)
(i)メチルグリシン二酢酸及びそのモノ‐、ジ‐若しくはトリアルカリ金属塩、及びモノ‐、ジ‐若しくはトリアンモニウム塩、並びにグルタミン酸二酢酸、及びそのモノ‐、ジ‐、トリ‐若しくはテトラアルカリ金属塩及びモノ‐、ジ‐、トリ‐若しくはテトラアンモニウム塩からなる群から選択される、前記溶液の総質量に基づいて45質量%から60質量%の範囲の少なくとも1種の錯化剤(A)、
(ii)成分(A)の質量に基づいて1質量%から30質量%の範囲の、部分的に又は完全に中和された(メタ)アクリル酸の少なくとも1種のホモポリマー又はコポリマー(B)、並びに
(iii)水
を含み、前記水溶液は、少なくとも1週間安定である、水溶液。 An aqueous solution,
(I) Methylglycine diacetic acid and its mono-, di- or trialkali metal salts and mono-, di- or triammonium salts, and glutamic acid diacetic acid and its mono-, di-, tri- or tetraalkali metals At least one complexing agent (A) selected from the group consisting of salts and mono-, di-, tri- or tetraammonium salts, in the range of 45% to 60% by weight, based on the total weight of the solution ,
(Ii) at least one homopolymer or copolymer of partially or fully neutralized (meth) acrylic acid in the range of 1% to 30% by weight, based on the weight of component (A) (B) And (iii) an aqueous solution comprising water, wherein the aqueous solution is stable for at least one week.
(i)固形分を41〜50質量%の範囲で有する錯化剤(A)の水溶液を提供する工程、
(ii)前記溶液にポリマー(B)を添加する工程、続いて
(iii)水を除去し、水溶液中の錯化剤(A)の濃度が45〜60%である溶液を得る工程、
を含む方法。 A method for producing an aqueous solution according to at least one of claims 1-10,
(I) providing an aqueous solution of the complexing agent (A) having a solid content in the range of 41 to 50% by mass;
(Ii) adding the polymer (B) to the solution, followed by (iii) removing water and obtaining a solution in which the concentration of the complexing agent (A) in the aqueous solution is 45 to 60%,
Including methods.
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